X-ray or gamma ray systems or devices – Source support – Including movable source
Patent
1989-12-12
1991-09-10
Westin, Edward P.
X-ray or gamma ray systems or devices
Source support
Including movable source
378193, 378198, 378205, 378 10, 378 94, H05G 102, H05G 164
Patent
active
050480707
ABSTRACT:
An X-ray tube support apparatus includes: an X-ray tube support mechanism for supporting an X-ray tube to be vertically extendible/movable; a guide unit, having moving paths which allow movement in two-dimensional directions parallel to a ceiling surface, for supporting the X-ray tube support mechanism, and guiding the X-ray tube to a central position of one photographing table; a plurality of position sensors, arranged in a vertical moving path of the X-ray tube support mechanism, and two-dimensional moving paths to the central position of the photographing table, for detecting vertical and two-dimensional moving positions of the X-ray tube support mechanism; a plurality of fixing units, arranged in the two-dimensional moving paths of the guide unit and the vertical moving path of the X-ray tube support mechanism, for fixing the X-ray tube support mechanism at each moving position; and a determination unit for storing position data in accordance with the central position of the photographing table and a set distance from a focal point of the X-ray tube to an X-ray photographing system, comparing the position data with a position detection signal of the position detected by each position sensor, and outputting a lock instruction to the corresponding one of the fixing units when it is determined that the position data coincides with the position detection signal, thus locking the X-ray tube support mechanism.
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patent: 3891856 (1975-06-01), Amor, Jr. et al.
patent: 4024403 (1977-05-01), Bernstein et al.
patent: 4356400 (1982-10-01), Polizzi et al.
patent: 4435830 (1984-03-01), Suzuki et al.
patent: 4501011 (1985-02-01), Hauck et al.
Inoue Kiyoaki
Maehama Tomio
Kabushiki Kaisha Toshiba
Westin Edward P.
Wong Don
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